She knew. Deep down, Twilight had known for years. It was obvious, really: how long had Celestia and Luna been alive? Thousands of years and they were alicorns. Yet, how long did the average pony live? Up to a hundred if they were lucky. 
Twilight had known for a while, that much was true, but she still thought...maybe...just maybe, if she didn’t think about it, it wouldn’t be true.

(Edit: Featured on 1-3-20 and 1-4-20!!!!! Thank you for all of the support!!!)